Buffer Strategy of Accessing Large Object Based on Stream Data
Lihua Yue · Jisuanji gongcheng · 2006
This paper creates a new buffer strategy based on stream data with the analysis of PostgreSQL.This strategy replaces the traditional page accessing model with stream model to get better performance.In addition,under this new buffer strategy,it recreates the buffer structure for LOB using stream pipes.This buffer structure maintains a synopsis data structure on memory which has less size of data than LOB.Through this synopsis data structure,it can get needed data more quickly with avoiding redundant disk I/O.